In the
CIP rules the conventional order of
ligands established for the purpose of unambiguous designation of
stereoisomers. It is deduced by application of
sequence rules, the authoritative statement of which appears in R.S. Cahn, C.K. Ingold and V. Prelog,
Angew. Chem.78, 413-447 (1966),
Angew. Chem. Internat. Ed. Eng.5, 385-415, 511 (1966); and V. Prelog and G. Helmchen,
Angew. Chem.
94, 614-631 (1982),
Angew.Chem. Internat. Ed. Eng.
21, 567-583 (1982).
Source:
PAC, 1996, 68, 2193
(Basic terminology of stereochemistry (IUPAC Recommendations 1996))
on page 2203